Answer: B. False
Explanation:
Information Technology Infrastructure Library (ITIL) is a framework of best practices for delivering IT services to businesses and management generally. The main aim of ITIL is to focus IT in managing the needs of a business.
ITIL’s systematic approach to IT service management can help businesses manage risk, strengthen customer relations, establish cost-effective practices, and build a stable IT environment that allows for growth, scale and change.
<span>The cheapest method to transport heavy goods and material is through cargo ships by the sea for long distance carriages. But this method is time consuming and not as flexible as other methods of transport. You can mostly only send bulky non perishable heavy goods by this method of transport and you cannot rely on this method of long distance transport if you are sending products that are in high demand in market as it is time consuming.</span>
<span>100 observations needed for desired accuracy and confidence.
The formula for the confidence of a sampling is:
ME = z*d/sqrt(n)
where
ME = Margin of error
z = z score for desired level of confidence
d = standard deviation
n = number of samples
The z score desired is calculated as follows. If you want a 95% confidence, you calculate 1 - 0.95 = 0.05, then you divide the result by 2, getting 0.025, and finally you use a standard normal table to get the z score for the desired probability. So for this problem of 95.44% we get
(1 - 0.9544)/2 = 0.0456/2 = 0.0228
Looking up a standard normal table, the value of 0.0228 is found to have a z-score of 2.0, a.k.a. 2 standard deviations from the normal.
So let's substitute the known values into the formula and solve for n.
ME = z*d/sqrt(n)
1 = 2*5/sqrt(n)
sqrt(n) = 2*5
sqrt(n) = 10
n = 100
So the owner needs at least 100 samples to be 95.44% certain that his measurement error is within 1 second of the correct time.</span>
Answer:
i The answer is going to be a. true